property FormatAppearance.Key as String
Indicates the key of the FormatAppearance object.

String A String expression that specifies the unique key of the FormatAppearance object. The Key of the FormatAppearance should include only alpha-numeric characters, any other character will be ignored.
The Key property indicates the key of the FormatAppearance. Use the Key of the FormatAppearance in [] to apply the specified object to any column or row. For instance, the PivotRows property on "0[bold,italic]" to group by the first column and shows the column's content in bold and italic. The same rule is applied to PivotColumns or PivotTotals property.

By default, the FormatAppearances collection contains the following keys: